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<1…14151617181920…34>
  • z88dk+splib2 sprites question.I'm creating a game and I have several "states" for my main sprite, such as jump, facing left, facing right, etcetera. All those states require a dif…

    ... for symbol
    ld b,0 ; b = # of encoded bits ... done encoding!
    ld a,b ; a = # of encoded ... = right child, z = left child
    inc b ; one more encoded ... mask off bit
    jr z, goleft ; if code bit ...
    Alcoholics Anonymous Alcoholics Anonymous October 2005 Development
  • Chuntey - what a fantastic word!Just thought I'd share that

    ... my TV - it takes [B]hours[/B] to tune the Didaktik M ... the keyboard is odd :)
    "Z" key is overpressed and not ... shift, caps lock, symbol shift, [B];[/B] , [B]"[/B] and left right arrows) give ...
    de Vandemar Croup de Vandemar Croup December 2005 Sinclair Miscellaneous
  • ANN: midi2ay 0.1Well, here's the MIDI-to-AY converter I promised. I've named it "midi2ay" (original name eh?) [url="http://es.geocities.com/qllaria/midi2ay/midi2ay-…

    ...
    and a
    jr z,loop

    di
    cp 0ffh
    jr z,fin
    cp 0feh
    jr z,salta
    ld bc,0fffdh ... /> ld a,(hl)
    ld b,0bfh
    out (c),a ...
    pissedbob pissedbob December 2005 Development
  • Machine Code: quicksort optimisationI came across this z80 quicksort implementation when going through the wikipedia article on the same. It's 44 bytes long. I was wondering if any of …

    ... hl
    qsloop ld h,b
    ld l,c
    ld b,h
    ld c,l ...
    Metalbrain Metalbrain January 2006 Development
  • Machine Code: quicksort optimisationI came across this z80 quicksort implementation when going through the wikipedia article on the same. It's 44 bytes long. I was wondering if any of …

    ... ; bc = left
    ld a,b
    or c
    ret ... z ; if 0, done
    pop ... ,hl=right)
    ld a,b ; left < right? bc & ... l,c
    ld h,b
    ex de,hl ; ...
    Alcoholics Anonymous Alcoholics Anonymous January 2006 Development
  • Advice needed - Xbox EmulatorsDoes anybody have experiance of using a speccy emulator with an Xbox ? My intention is to install Linux and then try and run an emulator (most like…

    ... /> [Right Trigger]=
    [A]=
    [B]=
    [X]=
    [Y]=
    B makes Eric runs faster when ... Trigger]=
    [A]= SPACE
    [B]=
    [X]=
    [Y]=
    [A]= T
    [B]= Z
    [X]= Z
    [Y]=
    [START ...
    ewgf ewgf February 2006 Emulators
  • Any examples of Proportional Font (Dark Star)Dark star had a cool proportionally spaced way of displaying text. Does anyone know of any code to do this? Cheers

    ... )
    and 7
    jr z,a3



    ld b,8

    a1:
    and 7

    ld b,a

    a2:

    a3:
    ld b,8
    a4:
    ld ...
    robpearmain robpearmain March 2006 Development
  • Run Length DecodingRun length encoding/decoding is far less efficient than using a modern compression program.

    ...
    or a
    jr z,del1
    del2: push af ... /> dec bc
    ld a,b
    or c
    jr ... z,del3
    pop af
    ...
    rtunes rtunes March 2006 Development
  • Run Length DecodingRun length encoding/decoding is far less efficient than using a modern compression program.

    ... ;check for compression
    jr z, unpak_scr2

    ;compression
    and 127
    ld b, a

    ld a ... /> ;non-packed
    unpak_scr2 ld b, a

    unpak_scr3 ld ...
    Fikee Fikee March 2006 Development
  • Shoot-em-up Development UpdateHi Folks, I am still working away at my horizontal scroller. Here is a link to let you see progress. I have re-written the scrolling routine to make…

    ... Map

    B - Erases Tile

    Z,X - Pans Left ...
    dmsmith dmsmith April 2006 Development
  • Shoot-em-up Development UpdateHi Folks, I am still working away at my horizontal scroller. Here is a link to let you see progress. I have re-written the scrolling routine to make…

    ... /> LD A,4
    SUB B
    ADD A,A ; MULTIPLY ... EXX
    OR A: JR Z, FTW2[/FONT]
    [FONT=Courier ... EXX
    OR A: JR Z,NEXTROW
    LD H,A ...
    dmsmith dmsmith April 2006 Development
  • ZXCF InterfaceI'm just trying to get an idea for the ZXCF interface, and to me, it looks a much cleaner design compared to divIDE (Of course, that's just my opinio…

    ... height (patched earlier)
    ld b,b ; switch off accelerator
    pop ... /> dec l
    jr z,gblt4
    ld a,$ae ... /> dec l
    jr z,gblt4
    ld a,$a6 ...
    glancaster glancaster April 2006 Hardware
  • Key press to ASCII valueI need a bit of code that will give me an ASCII value when the key is pressed. I only really need a-z. I tried using the following code but it only s…

    ... br /> or a
    jp z,NoPress ; ignore CAPS
    cp ...

    NextScanRow: rlc b ; on to the next key ... ; SPACE SYM SHIFT m n b

    ; key press ...
    Mr Millside Mr Millside May 2006 Development
  • verification needed for Spanish transcriptionI've transcribed the English and Spanish parts from this [url=ftp://ftp.worldofspectrum.org/pub/sinclair/games-info/t/TripleDecker2.zip]Triple Decker…

    ... Kkrudd, y empieza su
    b?squeda, pero pronto se ve ... )
    IZDA Cursor a izda, Z, X, C o V
    DECHA Cursor a decha, B, N, M o SYMBOL SHIFT ...
    Metalbrain Metalbrain May 2006 Support files
  • It's a mystery, and it needs to be solved right away!Here's one for all you sci-fi enthusiasts in Speccy-land. I remember seeing a film about 15 or 16 years ago about a disturbed teenager who believed h…

    ... head.
    if a=1, b=2, c=3 etc --> ... ; z=26
    then D. Adams = ...
    Where's that AY chip gone... Where's that AY chip gone... June 2006 Chit chat
  • Loading schemes18 years ago I hated loading schemes like Alcatraz and Speedlock because they were a b*tch to copy and became unreliable when the tape got older. Now…

    ... dec bc
    ld a,b
    or c
    ... ld h,$00
    ld b,$b0
    jr lff47< ... ld a,$cb
    cp b
    rl l
    ...
    lff6c inc b
    ret z
    ld a,$ ...
    Tom-Cat Tom-Cat July 2006 Games
  • A very worrying game...There's a similar game currently in progress on the 24 message board on IMDB. I will type the name of a Speccy game using my elbows and the first per…

    ... ... uij ... nb

    p; .. \z .. erd .. a\ .. dsx .. io .. zasx ... 've wasted on this you b@stard
    bleugh bleugh July 2006 Sinclair Miscellaneous
  • betatestinghi, i need some betatesters for a simple multiplayer game. the game is for 2-5 players so you need one emulator and 2 or more speccy fans in one room…

    [quote=Fikee]takze vsechnu tu nadenicinu zase musi zmaknout kluci z vychodniho bloku :D[/quote]


    what "nadenicina" are you talking about...?!? it?s [B]fun[/B] at first place! :D
    de Vandemar Croup de Vandemar Croup July 2006 Sinclair Miscellaneous
  • comedy namesim printing off some name badges for my mates stag do.... what kind of comedy names can blokes have?

    ... of vagina)
    Amanda B. Recandwithe (A Man to ... Need A Whore)
    Ann B. Dextrous (Ambidextrous)
    ... br /> Bea O'Problem (B.O. Problem)
    Bea ... Seeium (Calcium)
    Candice B. DePlace (Can This Be The ... My Words)
    Mark Z. Spot (Mark The Spot)< ...
    psj3809 psj3809 July 2006 Chit chat
  • Self Relocating CodeOn page 47 of [url]http://www.tim-mann.org/trs80/doc/ldosq1-3.txt[/url] is an article about relocating code. The documented routine that performs the…

    ... /> INC HL
    ADD A,B
    ADC A,(HL)
    JR Z,ENDC
    ADD A,L ...
    piters piters August 2006 Development
  • In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…

    ... data to sort
    ld b, 6 ; only need to check ... c ; compare c
    jr z, next ; if c = a then ... e ; check flag
    jr z, sort ; if zero, swap occurred ...
    Kiwi Kiwi August 2006 Development
  • In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…

    ...
    or a
    ret z


    ... - col1%
    inc b
    ld e,1 ;b ? col2
    ; ... jr c, sort2
    jr z, sort2
    ;SWAP
    ... jr c,sort3
    jr z,sort3

    sub ...
    rtunes rtunes August 2006 Development
  • In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…

    ...

    loop_label2:
    ld b, number_of_sprites

    loop_label:
    cp c
    call z, draw_sprite_pointed_by_IX
    add ix, de ...
    Fikee Fikee August 2006 Development
  • In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…

    [QUOTE=Paolo Ferraris]This is a good point. Anyway, if sorting is needed then I'd strongly suggest, for sprite sorting, bubblesort over the other sorting methods: it is simple, uses few memory, and - more importantly - it is very fast for almost-sorted ...
    JamesD JamesD September 2006 Development
  • The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…

    ... data to sort
    ld b, 6 ; only need to check ... c ; compare c
    jr z, next ; if c = a then ... e ; check flag
    jr z, sort ; if zero, swap occurred ...
    Matt_B Matt_B September 2006 Sinclair Miscellaneous
  • Pixel Explosion CodeJust a little snippet to cause explosive effects. It uses table lookups for the screen address, and can handle up to 32 pixel particles. A particle…

    ... )
    or a
    jr z, skipparticle

    ld d ...
    inc hl
    ld b,(hl)
    inc hl
    ld b,(hl)
    inc hl
    Alcoholics Anonymous Alcoholics Anonymous September 2006 Development
  • New - BASin r13a is available for downloadHi all, Here's the latest BASin. Mostly just bugfixes, but also now has the upgraded UDG editor which can now edit multiple UDGs on one editing gri…

    ...
    Now press undo (ctrl+z)

    So you can ... /> [/quote]

    [b]bug 2[/b]
    while I was ... /> [/color]

    [b]bug(?) 4[/b]
    [color=blue]

    [b]Wish 1[/b]
    [color=brown]
    [b]important[/b] feature request ...
    Arda Arda October 2006 Emulators
  • +2 ramdisk - access in machine codeHow can you access the ramdisk in machine code? I've got a +2, and it seems the ramdisk has never been properly utilised. It would be a handy little…

    ... adjust byte counter
    inc b

    ld a, ... destination physical page
    jr z, destok ; if in main 64k ... special case needed
    jr z, destset
    ld ... source physical page
    jr z, srcset ; if in main 64k ...
    Alcoholics Anonymous Alcoholics Anonymous October 2006 Development
  • Oh so BRIGHT!What is the SLOWEST way to change the attribute area to BRIGHT? It has to be legit! No meaningless instructions or doing stuff for the sake of it. …

    ... c,a
    res 0,b

    loop2: ld a ... : bit 0,d
    jr z,nextattr
    ld a,(ix ...
    Woody Woody November 2006 Development
  • Oh so BRIGHT!What is the SLOWEST way to change the attribute area to BRIGHT? It has to be legit! No meaningless instructions or doing stuff for the sake of it. …

    ... c,a
    res 7,b

    loop2: ... zerobc
    ld c,b
    scf
    ... /> inkpaper: bit 7,b
    jr z,nextattr
    ld a ...
    Woody Woody November 2006 Development
<1…14151617181920…34>

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